I have run this engine unloaded, yesterday.
Today I did some mowing, progressively loading the engine & increasing its speed.
No smoke, all sounds and feels ok.
Has a bit of a surge, I may have to look at the carb again.
[Linked Image]
[Linked Image]

Not a big fan of bar blades, but its the only 21" option I had.
Surge could be to do with the bar blade.
I will order a new universal blade plate for it, the old one was fractured in numerous places, not the first time I have seen this.



Happy is he who penetrates the mystery of things.